INVESTIGATION OF VOLT-AMPERE CHARACTERISTICS OF VISIBLE LEDS
https://doi.org/10.26583/vestnik.2022.240
Abstract
This paper presents a setup for studying the current-voltage characteristics of LEDs, as well as determining the band gap of the material and the wavelength of the LED radiation. The installation is structurally a monoblock with LEDs under investigation, which has connectors for connecting an external power supply and voltage and current meters. An electronic circuit is presented and the principle of its operation, a measuring circuit, and a printed circuit board drawing are described. A technique is described for measuring the band gap and wavelength of an LED using the current-voltage characteristic. This installation is used in the educational process when conducting laboratory classes in general physics when studying the topic "Elements of the band theory of solids." Also, the installation can be used for scientific research in semiconductor physics.
About the Authors
A. Yu. Rybalchenko
Volgodonsk Engineering Technical Institute the branch of National Research Nuclear University «MEPhI»
Russian Federation
Russian Federation
N. V. Ermolaeva
Volgodonsk Engineering Technical Institute the branch of National Research Nuclear University «MEPhI»
Russian Federation
Russian Federation
V. I. Ratushny
Volgodonsk Engineering Technical Institute the branch of National Research Nuclear University «MEPhI»
Russian Federation
Russian Federation
References
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Review
For citations:
Rybalchenko A.Yu., Ermolaeva N.V., Ratushny V.I. INVESTIGATION OF VOLT-AMPERE CHARACTERISTICS OF VISIBLE LEDS. Vestnik natsional'nogo issledovatel'skogo yadernogo universiteta "MIFI". 2022;11(5):343-347. (In Russ.) https://doi.org/10.26583/vestnik.2022.240
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